Abstract Backward-Facing Step (BFS) flow is one representative model for separation flows,
which can be widely seen in aerodynamic flows (airfoil, spoiler, high attack angle process) …

The first edition of the book “Pressure and Temperature Sensitive Paints” published by
Springer in 2005 summarizes the early development of pressure-and temperature-sensitive …

From a unified perspective, this review describes global skin friction diagnostics based on
surface flow visualizations. The foundations of the developed image-based methods are …

Abstract We study the Laminar Separation Bubble (LSB) which develops on the suction side
of a NACA 0015 hydrofoil by means of a Temperature-Sensitive Paint (TSP), at a Reynolds …

Distributions of the pressure and mass transfer coefficient on rotating blades under low-
pressure (low-Reynolds-number) conditions were visualized, whereas the latter is closely …

This paper presents the derivations of the exact relations between skin friction and other
important dynamical and kinematical quantities on a stationary curved surface in a viscous …

The relationship between skin friction and the surface optical flow (SOF) in viscous flows is
discussed based on the evolution equations of surface temperature, scalar, and enstrophy …

A variational solution of the physics-based optical flow equation is studied for extraction of
high-resolution velocity fields from flow visualization images. The solution to preserve …

A systematical method is formulated for extracting skin-friction fields from Temperature
Sensitive Paint (TSP) images in the sense of time-averaging and phase-averaging. The …

The feasibility of skin-friction field measurements using the global luminescent oil-film skin-
friction field estimation method was evaluated for a challenging case of a supercritical airfoil …